Die-block.



. Patented Feb. ll, I902. A. A. DICKSON.

DIE BLOC-K" (Application filed June 24, 1901. 1

(No Model.)

UNITED STATES PATENT OEEIC.

AROHIBALD A. DIOKSON, OF TORONTO, CANADA.

DIE-BLOCK.

SPECIFICATION forming part of Letters IPatent No. 692,992, dated February 11, 1902.

Application filed June 24, 1901- fierial No. 65,876. (No model.)

To all whom it may concern:

Be it known that I, ARCHIBALD ANDERSON DICKSON, a subject of the King of Great Britain, residing at Toronto,0anada, have invented certain new and useful Improvements in Die-Blocks, of which the following is a specification.

My invention relates to peat-machines, and particularly to the class of machines shown in Patents N 0. 624,630, dated May 9, 1899, and No. 613,856, dated November 8, 1898. In these patents I have shown presses in which a dieblock is used provided with die -spaces, in which the peat-bod y is compressed and formed into blocks by a male former or die, the block being provided with water-spaces for keeping it cool during the compressing action. In practice it is sometimesfound necessary to make the die-block of greater depth, as some peat requires a greater length of tube, and I have aimed to meet this not by providing a larger die-block but by a simple construction for extending the tube without materially increasing the size or weight of the die-block proper and without making the entire block of greater size, as the blocks are expensive. The extension can also be made lighter than the block proper, for the reason that the compression takes place in the upper part of the tube, while the lower part of the tube simply retains the formed blocks of peat and is not parts are kept cool.

subject to the same pressure.

In the accompanying drawings, Figure 1 is a section of a part of a die-block. Fig. 2 is an enlarged view of a packing-gland. Fig. 3 is a plan view of Fig. 2. Fig. 4 is a detail.

The die-block is shown at A and is provided with a compression-tube a, extending through the same, in which the peat is compressed into blocks. In order to keep the parts cool under the pressure exerted to condense the peat into blocks, I provide a water-chamber b, and this is connected with a water-supply a, leading from any suitable source. An outlet cl is provided to carry the water ofi. In this way the As it is not necessary to make the die-block of the great strength necessary to sustain the pressing action throughout, I have aimed to provide a block which will take a compression-tube of sufficient length to meet the requirements of all grades of peat, as heretofore it has been found that the tube has been too short in order to properly compress certain grades of peat. It is necessary not only that the compression-tube should have a compressing-space, but that several blocks previously formed should be retained in the tube to act as a resistance for the next succeeding charge, and I provide in my present construction an extension of the main block adapted to contain the lower end of the compression-tube, leaving the main body of the compression-tube free to be used for the compressing action. As shown, the bottom of the water-chamber b is perforated, as ate, and secured in any suitable manner to the bottom of the die-block is a shell or casing f, forming an extension or continuation of the water-chamber surrounding the compressiontube a. The bottom of this casing is fitted with-a packingland g, (shown in Figs. 2 and 3,) making a water-tight connection with the tube. I form a water-tight connection be tween the compression-tube a and the block, at the upper part of the block, as shown in Fig. 4 at 72, so as to prevent leakage of water at this point, this being a simple ring of rubher.

What I claim is' 1. A die-block provided with a compressiontube and a water-chamber combined with an extension of the Water-chamber surrounding an extension of the compression-tube, sub stantially as described.

2. A die-block comprising a compressiontube, a chamber adapted to receive a cooling medium, an extension of the compressiontube extending below the die-block proper and a water-chamber surrounding such extension and forming a continuation of the main chamber, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

AROHIBALD A. DIOKSON.

Witnesses:

HENRY E. COOPER, F. L. MIDDLETON. 

